Astroneer save editor tools let players modify local save files to adjust resources, research, and progression details. These editors are commonly used on PC versions where save locations are accessible through the users folder, helping speed up experimentation or recovery after crashes.
Editing saves can unlock parts and power faster while reducing grinding, but it also risks corruption if changes are made during active sessions. Understanding safe workflows and file formats is important for reliable use of any Astroneer save editor.
Save File Location and Backup Workflow
Finding the Correct Users Folder
On Windows, the typical Astroneer saves path is inside AppData/LocalLow/GearboxSoftware/ASNE, while macOS stores them in Library/Application Support. Always copy the entire ASNE folder to an external location before editing.
Backup Naming Conventions
Use a timestamped folder name, such as ASNE_Backup_2024-11-01, so you can revert cleanly after each major edit. Keeping several dated backups reduces the impact of unforeseen issues.
| Platform | Save Directory | Recommended Editor | Typical File Name |
|---|---|---|---|
| Windows 10/11 | C:\Users\<User>\AppData\LocalLow\GearboxSoftware\ASNE | Hex Editor and JSON Tools | ASNE_Save.dat, Player.sav |
| macOS | ~/Library/Application Support/GearboxSoftware/ASNE | Hex Editor and JSON Tools | ASNE_Save.dat, Player.sav |
| Linux (Proton) | ~/.steam/steam/steamapps/compatdata/1354340/pfx/drive_c/users/steamuser/AppData/LocalLow/GearboxSoftware/ASNE | Hex Editor and JSON Tools | ASNE_Save.dat, Player.sav |
| Xbox | System managed, limited file access | Not applicable | No direct file editing |
| PlayStation | System managed, limited file access | Not applicable | No direct file editing |
Integrating Editor with Game Version
Matching Major and Minor Versions
Open the save in the editor only with a tool that understands the current game build. Mismatched formats between the Astroneer save editor and the game version can scramble item IDs and terrain data.
Validation After Edit
After applying changes, verify the save by launching the game normally and checking that structures, power levels, and inventory contents reflect the intended modifications without visual errors.
Safe Modification Practices
Understanding Binary and JSON Formats
Some Astroneer save editor tools display raw bytes alongside parsed values. Avoid altering headers or checksum regions unless you fully understand how they affect integrity checks.
Step-by-Step Edit Workflow
Close the game, copy the save folder, apply small targeted changes, test in a single session, and only then decide whether to keep the edited file or revert to the backup.
Advanced Repair and Recovery
Fixing Corrupted Headers
If the game fails to load a session, compare your backup with the current file using a byte viewer to spot offset differences caused by incomplete writes.
Selective Item and Power Restoration
Experienced users can copy resource tables from a healthy profile into the damaged save, but this requires careful alignment of structure offsets to avoid breaking other objects.
Responsible Use and Platform Awareness
- Back up original saves before any modification with a dated folder structure.
- Use editors that match your game version to avoid format mismatches.
- Test changes in a single-player session before sharing worlds.
- Avoid edited saves on platforms with strict anti tamper enforcement.
- Understand that binary edits carry higher risk than scriptable JSON adjustments.
- Document each change so you can revert specific steps if needed.
- Respect multiplayer rules and community guidelines when modifying shared worlds.
FAQ
Reader questions
Can a Astroneer save editor remove locked research without completing missions?
Yes, by editing the research completion flags in the save data, you can mark technologies as discovered even if the in-game tasks were not finished.
Will using an Astroneer save editor trigger anti cheat or cloud sync bans on consoles?
Console platforms enforce strict integrity checks, and modified saves can lead to rollback or suspension, especially when uploaded to cloud storage.
Is it possible to edit saves cooperatively in multiplayer sessions?
Editing active multiplayer saves risks desynchronization and world corruption; always pause the server, make changes offline, and verify consistency before restarting.
How often should I create a new backup when experimenting with a save editor?
Create a fresh backup before each editing session so you can roll back to a stable state whenever the results are unexpected or unstable.